Installing A Return Air Duct - Huawei NetCol8000-E220 User Manual

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Figure 4-20 Securing an air duct (outdoor installation scenario)
Step 9 Lay a flexible connection between the air supply air duct and the wall, and wrap
the rubber plastic thermal insulation foam (at least 3 cm thick, covering the
aluminum foil) for the flexible connection.
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4.9.2 Installing a Return Air Duct

The return air duct needs to be prepared onsite.
You are advised to use foam boards. Use six screws to secure the horizontal board
and four screws the vertical board. Drill holes at the return air vent by yourself.
Issue 10 (2024-01-30)
NO TE
● When the equipment is installed indoors, it is recommended that shock pads be
installed between the air duct and the floor.
● When the equipment is installed outdoors, it is recommended that the air duct be
secured on the concrete platform to prevent rain from soaking the air duct.
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